====================================== | [ 36.435053][ T331] 1 lock held by ip/331: | [ 36.435194][ T331] #0: ffffffff95bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 36.435562][ T331] | [ 36.435562][ T331] stack backtrace: [ 36.436077][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 36.436491][ T331] Call Trace: [ 36.436636][ T331] [ 36.436740][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 36.436932][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 36.437124][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 36.437433][ T331] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 36.437697][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 36.437914][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.438145][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 36.438360][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 36.438548][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 36.438783][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 36.438970][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 36.439156][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 36.439340][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 36.439526][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 36.439717][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 36.439899][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 36.440083][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 36.440313][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 36.440511][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 36.440694][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 36.440881][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 36.441065][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.441210][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 36.441401][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 36.441591][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 36.441784][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.441973][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 36.442160][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.442399][ T331] ? __create_object (mm/kmemleak.c:751) [ 36.442599][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 36.442795][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 36.442942][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 36.443127][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.443318][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.443502][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.443652][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 36.443844][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 36.444031][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.444223][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 36.444426][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 36.444628][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 36.444816][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 36.445008][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 36.445194][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.445384][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 36.445584][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 36.445768][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 36.445965][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 36.446160][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 36.446356][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 36.446540][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 36.446773][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 36.446969][ T331] ___sys_sendmsg (net/socket.c:2653) [ 36.447171][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 36.447359][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.447549][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 36.447731][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 36.447962][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 36.448155][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 36.448346][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.448582][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 36.448785][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 36.448969][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 36.449149][ T331] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 36.449354][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 36.449546][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 36.449776][ T331] RIP: 0033:0x7f8180b7a7b7 [ 36.449967][ T331] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 36.450640][ T331] RSP: 002b:00007ffe3c9194d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 36.450923][ T331] RAX: ffffffffffffffda RBX: 00007ffe3c919c00 RCX: 00007f8180b7a7b7 [ 36.451198][ T331] RDX: 0000000000000000 RSI: 00007ffe3c919540 RDI: 0000000000000005 [ 36.451471][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 36.451758][ T331] R10: 0000000002a17910 R11: 0000000000000246 R12: 0000000000000004 [ 36.452027][ T331] R13: 0000000066bea61b R14: 0000000000496600 R15: 0000000000000000 | [ 36.454331][ T331] 1 lock held by ip/331: | [ 36.454491][ T331] #0: ffffffff95bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 36.454846][ T331] | [ 36.454846][ T331] stack backtrace: [ 36.455375][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 36.455781][ T331] Call Trace: [ 36.455929][ T331] [ 36.456034][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 36.456228][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 36.456413][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 36.456686][ T331] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 36.456952][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 36.457167][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.457398][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 36.457621][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 36.457802][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 36.458035][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 36.458220][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 36.458407][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 36.458590][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 36.458772][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 36.458956][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 36.459148][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 36.459328][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 36.459555][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 36.459751][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 36.459936][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 36.460121][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 36.460307][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.460448][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 36.460641][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 36.460831][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 36.461023][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.461209][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 36.461399][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.461634][ T331] ? __create_object (mm/kmemleak.c:751) [ 36.461823][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 36.462013][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 36.462160][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 36.462348][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.462530][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.462709][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.462854][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 36.463039][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 36.463226][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.463411][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 36.463608][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 36.463797][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 36.463987][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 36.464170][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 36.464353][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.464541][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 36.464738][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 36.464918][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 36.465106][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 36.465302][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 36.465489][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 36.465673][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 36.465898][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 36.466093][ T331] ___sys_sendmsg (net/socket.c:2653) [ 36.466282][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 36.466470][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.466654][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 36.466837][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 36.467066][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 36.467256][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 36.467448][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.467678][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 36.467870][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 36.468057][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 36.468245][ T331] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 36.468474][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 36.468661][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 36.468890][ T331] RIP: 0033:0x7f8180b7a7b7 [ 36.469082][ T331] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 36.469724][ T331] RSP: 002b:00007ffe3c9194d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 36.470018][ T331] RAX: ffffffffffffffda RBX: 00007ffe3c919c00 RCX: 00007f8180b7a7b7 [ 36.470294][ T331] RDX: 0000000000000000 RSI: 00007ffe3c919540 RDI: 0000000000000005 [ 36.470569][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 36.470840][ T331] R10: 0000000002a17910 R11: 0000000000000246 R12: 0000000000000004 [ 36.471114][ T331] R13: 0000000066bea61b R14: 0000000000496600 R15: 0000000000000000 | [ 36.473361][ T331] 1 lock held by ip/331: | [ 36.473513][ T331] #0: ffffffff95bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 36.473845][ T331] | [ 36.473845][ T331] stack backtrace: [ 36.474348][ T331] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 36.474954][ T331] Call Trace: [ 36.475095][ T331] [ 36.475192][ T331] dump_stack_lvl (lib/dump_stack.c:122) [ 36.475385][ T331] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 36.475575][ T331] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 36.475845][ T331] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge [ 36.476109][ T331] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 36.476422][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.476655][ T331] br_add_if (net/bridge/br_if.c:692) bridge [ 36.476875][ T331] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 36.477055][ T331] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 36.477396][ T331] do_setlink (net/core/rtnetlink.c:2907) [ 36.477583][ T331] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 36.477769][ T331] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 36.477949][ T331] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 36.478237][ T331] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 36.478423][ T331] ? __kernel_text_address (kernel/extable.c:79) [ 36.478603][ T331] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 36.478784][ T331] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 36.479115][ T331] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 36.479316][ T331] ? stack_trace_save (kernel/stacktrace.c:123) [ 36.479496][ T331] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 36.479680][ T331] ? __pfx_validate_nla (lib/nlattr.c:396) [ 36.479957][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.480099][ T331] ? kasan_save_stack (mm/kasan/common.c:49) [ 36.480283][ T331] ? __nla_validate_parse (lib/nlattr.c:638) [ 36.480471][ T331] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 36.480665][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.481048][ T331] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 36.481234][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.481459][ T331] ? __create_object (mm/kmemleak.c:751) [ 36.481645][ T331] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 36.481930][ T331] rtnl_newlink (net/core/rtnetlink.c:3744) [ 36.482070][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 36.482252][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.482437][ T331] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [ 36.482718][ T331] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 36.482863][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 36.483049][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 36.483231][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 36.483416][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 36.483712][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 36.483899][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 36.484082][ T331] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 36.484273][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 36.484554][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.484750][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 36.484935][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 36.485120][ T331] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 36.485409][ T331] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 36.485599][ T331] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 36.485785][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 36.485974][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 36.486294][ T331] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 36.486491][ T331] ___sys_sendmsg (net/socket.c:2653) [ 36.486675][ T331] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 36.486855][ T331] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 36.487035][ T331] ? __lock_release (kernel/locking/lockdep.c:5435) [ 36.487309][ T331] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 36.487532][ T331] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 36.487723][ T331] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 36.487914][ T331] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 36.488238][ T331] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 36.488426][ T331] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 36.488605][ T331] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 36.488786][ T331] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 36.489087][ T331] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 36.489277][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 36.489509][ T331] RIP: 0033:0x7f8180b7a7b7 [ 36.489696][ T331] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 36.490427][ T331] RSP: 002b:00007ffe3c9194d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 36.490835][ T331] RAX: ffffffffffffffda RBX: 00007ffe3c919c00 RCX: 00007f8180b7a7b7 [ 36.491112][ T331] RDX: 0000000000000000 RSI: 00007ffe3c919540 RDI: 0000000000000005 [ 36.491384][ T331] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 36.491752][ T331] R10: 0000000002a17910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink